Can i convert this data into range data? and how can i do it

1.Which seller did you purchase the product(s) from?
Other Arducam Distributor (Tokopedia)
2.The Model number of the product(s) you have purchased?
IMX219 8MP For Raspberry Pi
3.Which Platform are you using the product(s) on?
Raspberry Pi 4B
4.Which instruction are you following?
https://www.arducam.com/docs/cameras-for-raspberry-pi/synchronized-stereo-camera-hat/opencv-and-depth-map-on-arducam-stereo-camera-hat-tutorial/#video-tutorial
5.Has your product ever worked properly?
never tried
6.What problems are you experiencing?
Dear @wong can i make this data into range data ? if i can how should i do, because i want to know the exact range for the object, thank you
7.What attempts at troubleshooting have you already made?
ask a friend
8.How would you like us to help you?
show the solutions step by step